Has anyone used these tyres, not much online about them.
Not that exact model but I've had Bontrager tyres a couple of times before as most Treks come fitted with them. I found them pretty middling, nothing wrong with them day to day really, but long term mine were not very hard wearing. I had Bontrager Hardcase H2 on my commuter bike and while they rode well, they were shot after one year. I then put some Schwalbe M+ on and they lasted forever... literally, they're still on that bike 9 years later, so they were a better investment.
But no, nothing really wrong with them. Bontrager tend to make half decent components across the board, despite what the Trek hating cretin in my LBS says.